55166837033720 has 32 divisors (see below), whose sum is σ = 124288491651120. Its totient is φ = 22037737777920.

The previous prime is 55166837033687. The next prime is 55166837033731. The reversal of 55166837033720 is 2733073866155.

55166837033720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906126542 + ... + 906187421.

Almost surely, 2^{55166837033720} is an apocalyptic number.

It is an amenable number.

55166837033720 is an abundant number, since it is smaller than the sum of its proper divisors (69121654617400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55166837033720 is a wasteful number, since it uses less digits than its factorization.

55166837033720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812314735 (or 1812314731 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 55166837033720 in words is "fifty-five trillion, one hundred sixty-six billion, eight hundred thirty-seven million, thirty-three thousand, seven hundred twenty".